Fremon Craig was born in Whittier, California and graduated from UC Irvine with an English degree. When she was 13, she watched a lot of MTV, which sparked her interest in music videos. She stated that music videos were "like little short films". Spoken word poetry was what Fremon Craig initially began writing.
She is known for writing and directing the 2016 coming-of-age dramedy The Edge of Seventeen and the 2023 adaptation of Judy Blume's classic middle-grade novel, Are You There God? It's Me, Margaret.